diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 4702a02..985dd76 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -2,7 +2,7 @@
 # image: busybox:latest
 
 before_script:
-  - apt install doxygen texlive-base texlive-latex-extra texlive-fonts-extra texlive-fonts-recommended
+  - apt install doxygen texlive-base texlive-latex-extra texlive-fonts-extra texlive-fonts-recommended python3-pip
   - git clone git://github.com/mosra/m.css
   - cd m.css/documentation
   - pip3 install jinja2 Pygmentsh